Silver Surfer (Norrin Radd) - also in flashback to when he, his board, Dawn and a Hordax briefly appeared on all the world's televisions
Toomie (Silver Surfer’s surfboard) - also in flashback to when it, the Silver Surfer, Dawn and a Hordax briefly appeared on all the world's televisions
Dawn Greenwood - also in flashback to when she, the Silver Surfer and his board, and a Hordax briefly appeared on all the world's televisions
Libby Windham (Dawn and Eve’s mother) - had the flashback to seeing "the girl" (Dawn), the Silver Surfer and his board, and an alien (Hordax) on her television
the very appreciative people of San Francisco, California (none named)
a Hordax - only in memory-flashback experienced by Libby Windham
multiple Terra Forms (assuming the forms of beings from the memories of those near them)
Spider-Man (Peter Parker)
Aribella Fishbach, Max Modell and Grady Scraps (Horizon University)

Note #1: This is the 200th Silver Surfer comic published so it has "SILVER SURFER #200" on the cover.

Note #2: The "Terra Forms" shape-shift into a number of forms, including the "Monkey Doll-head" that Aribella imagined lived under her bed when she was a child. Other, more familiar shapes that they assumed were those of the Green Goblin, Shalla Bal, the Magus (Warlock's evil self), Firelord, Doctor Doom, the Champion, Terrax the Tamer, the High Evolutionary, Thanos, Morg, Mephisto, the Flying Dutchman, Air-Walker, the original Super-Skrull, and Warrior One.

Note #3: While Dawn is telling her mother about her adventures, there are images of some of the beings she and the Surfer encountered. However, since they are symbolic images with no new content, I have chosen to not list them here.